Pump.



S. F. BOWSEH.

PUMP.

APPUCATION FILED DEc.20,19|2.

1.1379456. hmmm Ap.. 27, i915,

3 SHEETS-SHEET s. F. Bow/SER. PUMP.

APPLICATION FILED DEC.20, IQIZ.

1. l 7194550 Patented Apu 27, 1915.

3 sHETs-SHEET 2.

S. F. BOWSER.

PUMP.

APPLICATiON FILED DECJO, 191'2.

3l. y fggf. Patented Apr. 27, 1915.

3 SHEETS-SHEET 3.

sir'e et each stroke.

V39eme of lift pump. The

u citizen. of he Forli.' "iyne, in fblie eeumy of' State of ndiene,lieve invented ceteiii new and useil mg'u'evememe im Pumpe?- which fcllewi3ig e egeeieeiem This inveuio'e @be pumps end mee particularlydevees e' t lese in Wliiel the fluid a pui A v* pismi zeeipiecninle incylinder easing.

@ne of the principal ebgees *Jee iwextien is; o provide means ,'flieieby'lle giosiieu of the piemn in lie cylinder 01 seele observed. freni theemi; f' elle e furl/lier QI provide Ineens wliezeiiy i from he cylinderwhen l pislon7 and sepzuwhe menne '5;0 from beneath the pisei.

A furl/lief olJee e glie invention is Le provide iiiprovefl mennepefleemiiing lie amount elf fluial te be pumpe lr; one cycle ofepei'atiens ef the pleine, 2A, sume time indicating lie 'posi-laici, ofthe pieten Within lie cjvliulei' Ceiieepening lo the lesireel quzmsiy tobe pumped. 1'

For elle ateinmenli of these enfle and she eccenmlislimen; ef etli newam). useful ebjects is will eppee, die. inven'ion consists in thefeatures of nmfely in the construetion, Cembinebion, mil mieigel'nent ofbhe Several pzute generelly shown in lie accom panying drawings anddescribed in the lie ' speeiflcetien but ieoife pertimilerly peinte ouiin 'elle eppemlecl claims.

ln the drawings iligufe l is e side elevesion of a pump conetfueled ineeeerenee with *he principles of my invention; Fig. 2 is e top elan View019. e pump; Fig. 3 is a, Sectional View taken on the line 3d?) of Fig.2;,Fff. l is e sectional View teken on the line 4 4: of Fig 3; und Fig..5 is e deeil View ef one of the pointers and siepe.

ln a certain class ef pumps il; is esireloie te see whether of not Athefull quenlxiy desied is being pumped at each se'ke. This is particularlytrue the clase el pumps lmewn as meesuing pumps 7 in ich the etolle ofthe pis'en is ve'fiecl in leegii to correspond wih "she quanti@ liquid(le li: ie obveiisi willie pi'ineplemey be applied eihe e ferne A ifeseLt ex- YAeamieze. elle ifevemem iilusretes ils Seme 1 f features e' thepresen; type.'

efe einem and claimed in my capelllil'ueiee. Se'iel lila 333,997, lle-Vembei 2', lll.

ileferring new more pzmaieulemly te *he dealings, e pump casing 1.0 ofdesieeble eline el' eli-.epe le erevielefl 'with e bese member ll mil eCep member i2. Recipe()- cesle in the eeeimg is a pison eempiisingmembers 3 which eye threedeel upee he end of e bellow pieten red Mandi.fire adapted so fetale paeliizig meeifiel. 15 pesiioe be- Neen them andegeinet the inner Well the cesieg. maximized upon lle psto 'od le,preferably en the lewe? end heeef, is e plete 16 which may be secured inpesiion in any desired mi suitable nimmer, es fe? example, ley meting e,mit 1f? zhreede upen f wie The easing l is provdei ilh e number epeingsthrough Well heieef enel ei'eex'eely lengimdinel eline mene. heepe-'einge ere fevclee.- with plait-es idewe l) ef :ensperent maize fielwhich. held in piece in :my saleable menne?, ee fief exemepl ley meansthe frames 20 which ere Seeuieel is@ the outside of elle Cylindereasing. lll' is ebvious,'0 ceuiee tne heee epeeings in ille side of theceseg should be mede 'lua zglij by lle window, at lle seme providingmeans oaffording e vi-w of the interim of alle cylinder casing. Theplete 'i6 the heiem of he pie-en ie composed of some euhm-ble meeeralwhich may be readily Visible tueugh thel Windows im ehe side el? likeeeeingso that like pesiton of the piston may be dezermined when i isapposite :my (me of the Windows, v

The baee member 11 is preferably farmed with pori; openings 2l end 22having elle valve seats 23 and 24 respectively. Suieebly mouned for eemovemeimA with' repect to these seats aretlie valves 25 enel 26?, preferably arranged so that one valve will be opened und the other closed byone action of the mn in the cylimlei l0 end the reverse perm-ioneecurring when lie piston is moved in the epposize diieetol. @ne of.'the perl; epeeings, es :El ie *eefei'eby dispesed below fne cylieclefand 'te lie presents exemplieeieix of elle ie'vemion the oase Casing 1llelextmed Wiel@ e petee extending leef of the rack is a erally withrespect to the cylinder so that a portion thereof,.as 27 forms anextension for the other port Extending from this portion 27 and securedthereto in any suitable manner is atubular member 28. This tubularmember 28 forms the connection for ai discharge nozzle 29 (see YFigs. 1and 2).

A packing joint 30 is provided at the upper end of the cylinderpreferably in connection with the top\ or cap member 12 so that thepiston rod 1-1 may pass freely therethroughwithoutloss of compression.Also inserted in the 'top orcap member 12 is a pipe 31, and extendingthrough this pipe 3l into the cylinder is Va tubular member 32. Thelupper end of the tubular member is threaded into a. T 33 which isprovided `with a tubular member 34 substantially in alinement With thetubular member 32. At the lower end of the member 32 is a shoulder 35and extending through the tubular members 32 and 34e and through the l33 is a rod 36. rThis rod is formed at the lower end With a beveledenlargement 37 and at the upper end with a plug member 38 which may besecured thereto in any desired or suitable manner and which will slideWithin the tubular member 34e. Surrounding the rod 36 and disposedWithin the tubular members 32 and is a coil spring 39. The enlargement37 is substantially larger in, size than the inside of the pipe 31 sothat when brought in engagement with the lower end the pipe, it forms aclosing valve therefor.

ln order to move the tubular member and the rod 33v with the piston rod14, a tuu bular member 40 connects the T 33 With the body of a valve 41,which is disposed at the upper and outer-end of the hollow piston tube1li.

ln order to transmit movement to the piston a rash 4:3 is provided whichis movable through the casing 4st. Mounted in this casing and havingengagement with the teeth `iinion 4:5 secured to a shaft 46. Alsosecured to the shaft 46 is a gear 47 and meshingwvith the gear 4:7 is apinion 48 mounted upon a shaft 49. Secured to the shaft 4Q is a crank 50having a handle 51. it .isobvious that the rotation of the crank 50 willedect the movement of the rack 43.'

lfhe rack d3 lis secured to the piston rod le by van arm 52 so that themovement of the rack is imparted bular members for connectingv it withthe discharge nozzle 29. The function of this tubular member 53 is tofurnish a passage tor the discharge of fluid which has leaked 4in thedirectly to the piston rod.` Also extending through the top or cap'nem-y ber 12 o the cylinder is a tubular member 53 This tubular memberis menate past the piston in the cylinder. It may happen that during themovement of the piston in the cylinder va quantity of the liquid pumpedwill leak past the piston and will collect on the top thereof. A certainamount of liquid is of value in sealing the piston and in preventingleakage of fluid pastthe piston but if this liquid which is disposedabove the piston becomes too great in amount there is danger of damagingthe cylinder or in knocking oil' the cap member 12. Another objection tothe presence of liquid above the pistonis that the liquid which collectsabove the piston should in reality be discharged through the nozzle andtherefore the amount discharged is less than it should be by the amountof liquid which is 'disposed above the piston. The present constructionprovides means for` discharging superfluous liquid from above the pistoninto the. same nozzle through which the fluid is regularly discharged.

When the piston rod let is moved upward cylinder-by means of the rack 43the tubular member 32 and the rod 36I are carried with it in themannerpreviously described. During the upward movementl ot' the pistonthere is a free escape for the air above the piston lthrough the pipe 31and around the outside of the tubular member 32, but when the pistonapproaches the end of its strolrb the enlargement 37 of the rod 36approaches the opening formed in the end or lthe pipe 31, and when thepiston reaches certain point near the end ofthe stroke the openinthrough the pipe 31 Will be closed by the eveled surface oftheenlargement 37. This will causethe air to be slightly compressed abovethe Apiston and if there is' any superfluous liquid above the piston theend of the tubular member 53 will first be sealed and then thecompression of the air above the piston will be sufficient to force the,su erliuous liquid vo'utvvardl through thistu ularmember 53 through thecheck valve 54 and outl -of the discharge\ nozzle 29. From this it isobviousthat only the superfluous liquid will be discharged from abovethe piston for, as previ usl set forth, it is advantageous to haveilrfight amount of liquid above the piston.` QI. may also happen that airleaks is drawn through the valves, and accumulates belou7 the piston, sothat an air pocket be formed. When the piston israised to any one of theWindows, if there should be4 any space between the under side of thepiston and the top surface of the liquid, the air has displaced theliquid and must be rcmoved before correct measurement is possible.y .Inorder to accomplish this result the valve 41- is located, as previouslystated, at' the ou'ter'end of the hollow piston tube 14. This valve ispreferably of the self-closing type and is provided with an operatinglever past the piston or of: om)

3.@ yf-ei 'om h niv from a 'mough the a .A

h mijn pump w qufmy of 'n oido ty each 'is oommoz` A IRP/mbo? G plm Y@om thereof., an@ u' vidad 2go .L. um im consequently o me psomexomniooton of nvonibofrod 5'? is povido *which the has@ mombm il andthe djms'babjy 'duwde/d serios of stops. En those sops compriffs a fFig. 5) 'eoy momy am @mondi ml poooio o: i moose, it@ 'moei ing notch@odge; :m threaed bm" which may be imam-m6; ing openings in @be mamboengages one of the notches f membra? 5@ so hold *she-hte* x'e postion. MW boob" which be 'eay vsbe hough the tronspmen: members oy: Windows soHaai; when ik@ piston is msed fao pm tegfmmod amount 'the pae shposition inoa'tei by one of th.- Corrospozozzg io his amount consuctions possbo izo dotermne Whether or the pump i5 opoate l discharged and outof piston volvo 4A, z ps'mn o coi'anion wh a apzufenv poi'ions in the upvon movable in sho MEX/ed io 'the iowa? Side es?, conac'z Wih theVFinder and visible o sn \,`\,'21do\vs, and an afljusabe indicarn@ the,position of the pis- ;ou oo pomo a pdoermned amount.

" imp, filo combination with a omg *,anspm-ont windows fahoepim mo'mboin Said, cylinder hawmoans dngushobe 'fom the-piston A om o 'quifi inthe oyinder and visiu'oug), Said windows, and adjustabe pointelisdfsposed, without the cylinder to nfioze 25h43 posons o' the plateWithin the ovndo o, W'sich predetermined amounts.

"MH 'he pumpied.

4. n pump, tho oombimation with a pump ossia@ )oma vdeo with transparentWim-v dows, of a. pison 'movable thezoin, a plate .ovzfny Seoane hepiston dsnguish- I thmefroal ani; from a iqud in the cyk dei' andvisible ,olxgh Use windows, ano, Siep (levies movabe into o position tomiv 'tho movmaen the piston in one dio@ @aio pkoi@ nfimzog h@ positionof the piston through the windows for each stop position. 5.' In a pump,the combination with la cylinder provided withtransparent Windows, of apiston reciprocable therein, a. plate secured to .said piston andyvisible through the windows, means to move the piston in the cylinder,and a detent for said means having a nger to indicate the position inwhich the plate should be for the piston to pump a predetermined amount.6. In a pump, the combination with a casing provided with transparentwindows, of a piston movable therein, a plate secured to said piston andvisible through said openings, a rack movable with said piston, and oneor more detent devices adjustable to engage the rackv at predeterminedpoints, vwhereupon the pump will discharge a predetermined amount, said.detents being each provided with a finger to indicate the position ofthe plate at which the pump will discharge the predetermined amount.

7. In a pump, the combination with a casing formed with transparentwindows, of apiston reciprocable therein having a member visible throughsaid windows and distinguishable from a liquid in the cylinder, valvesat one end of said casing, means to limit the movement of the piston inone direction at any predetermined point, the said member which issecured to the piston indieating the position of the piston to pump apredetermined amount, and means at the end of. the casing opposite thevalve to discharge surplus liquid under pressure from the said end whichleaks past the piston.

' 8. A. pump having a reciprocable piston and separate fluid admissionandfluid discharge connections, and means operated by the piston in itsmovement to discharge into the fluid discharge connection any liquidwhich leaks past the piston.

9. In a pump, the combination with a cylinder, of a piston reciprocabletherein, a piston rod extending through one end of the cylinder, valvesdisposed at the other end of the cylinder, and means in connection withthe piston rod toform a restricted passage for discharging underpressure the liquid which leaks past the piston to the endoi the n'cylinder opposite the valves.

l0.'In a pump, the combination with a cylinder casing, of a pistonreciprocable therein, a discharge pipe for the cylinder, and means inconnection 'with the piston for positively discharging liquid exceedinga predetermined amount which leaks past the piston into the saiddisclrlnrve pipe.

1l. In a pump, the combination with a casing, oi a piston movabletherein, pump valves at one cud of (,'asiug1 and means at the other endol thc casing for discllarging a surplus oi liquid which leaks past thepiston, said means comprising a port opening in the end f theeasing,"adischarge pipe extending below the said port opening, and

means to close the ort opening when/ the piston approaches tlie end ofits stroke at this end whereby the liquid first seals the endof the saiddischarge pipe, and is forced outwardly by thecompression due to thecontinued movement of the piston in the same direction.

l2. In a pump the combination with a vertically dispos cylinder, apiston movable therein, a valve disposed-at the lower end of thecylinder, a discharge tube connected with one of said valves, a capmember at the other end of the cylinder having an opening therein, apiston rod movable through said cap member, a tubular member extendingthrough said cap member and forming a fluid tight joint therewith, oneend of said tube extending below the cap member and the other end of thetube being connected to the discharge pipe, a check valve disposed insaid last named tube, a tubular member extending through the opening insaid cap and secured to the piston rod for movement therewith, saidtubular member being freely movable through said opening, a rod havinga' beveled enlargement at its inner end adapted to close the saidopening in the cap `when the piston lis raised, and a springsurroundingsaid rod in the-tubularmember adapted to press the beveledenlargement of the rod resiliently against the said opening.

13. The combination in a pump, of a cylinder and pump discharge means, apiston movable in the cylinder, a hollow piston rod, and

means other than the pump discharge means to liberate air from beneaththe piston through the piston rod.

14. In a pump, the combination with acylinder and pump discharge means,of a piston movable in the cylinder, a hollow piston rod extendingthrough the piston and through one end of the cylinder, and means otherthan the normal.pumping discharge means in connection with the .said rodwhereby air may be discharged from between the pump piston and theliquid below it through the hollow piston rod.

15. In a pump, the combination with a cylinder a nd pump dischargemeans, of a piston movable in the cylinder, a hollow piston rodextending through the piston and out of one end of the cylinder, a valveat the outer end of the piston rod operative to release air from beneaththe piston when it is moved in the cylinder.4 1

16. In a pump, the conibination with an upright cylinder and pumpdischarge means, of a piston movable in the cylinder, ay hollow pistonrod-extending through the pistou and out of the top of the cylinder, avalve at the nieuwe the piston rod when `the piston is moved downwardlyin the cylinder.

l. ln e pump, the combination with e pump cylinder having Windows in theside thereof, of e piston movable therein und visible through thewindows, e hollou7 piston rod extending through the piston and out ofone end of the cylinder, and a valve 'to discharge air from beneath thepiston, the presence of air below the piston being evident from eninspection through the said windows,

lit, lin e pump, the combination with an apertured pump cyiinder,Windows in said apertures, piston movable in seid cylinder, e pletecarried by said pistonvand visible through seid openings, a hollowpiston rod extending; through the piston and through one end of thecylinder, means to discharge eir from the cylinder through the hollowiston rod, the presence o air in the cylinder being evident through theWindows when is e space between the piston and the top of the liquid.

in e pump, the combination with a cylinder having 'transparent Windowstherein,

of e piston movable in. the cylinder, e hollow piston rod extendingthrough the piston and .one end of the cylinder, ineens to reciprocatethe piston 1n the cylinder and e valve to liberste air from beneath thepiston when the piston is moved downwardly in the cylinder by saidmeans.

20. ln e pump, the combiuetion with e pump cylinder having trensperentWindows therein, of a piston movable in said cylinder, e, hollow pistonrod extending1 through the piston end the end of the move the pisn, e.combined pointer sind stop movablein position to engage the seidcylinder, ineens to Ineens whereby the pointer will indicate the heightto which the liquid should rise in the cylinder to discharge apredetermined amount of liquid, the presence of air in the cylinderbeing; shown. by :i space between the iower side or the piston and theupper level of the liquid and being visible through the windows, undmeans to discharge the air from the cylinder through the hollow.l rodwhen the piston is moved downwardly in the cylinder.

2l. The combination in e pump, of a cylinder, a piston movable therein,a hollow piston rod extending through the piston and through the upperend voiE the cylinder und means to discharge liquid from beneath thepiston through the hollow tube out of the cylinder and return it to thecylinder on the other side of the piston.

22. ln a pump,the combination with a cyl 60 inder, of a piston movabletherein, a hollow piston rod extending through the piston and out of theupper end of the cylinder, e tubular connection extending through theupper end of the cylinder to the interior of the cylinder and means todischarge air and liquid from below the piston rod through the tubularconnection, :the liquid Ibeing directed --through'said tubularconnection to the upper side of the piston in the cylinder, and the airIbeing liberated through said tubular con- 'nectiou l have signed my inthe presence of on this 13th day 75 lin testimony whereofnzime to thisspecication, two subscribing Witnesses, of December, A. D'. 1912. v vSYL ANUS F. BOWSER.

Witnesses: A

J. R. Mnrnaou,

ih. W, Thome,

